Because you like Spike in Buffy the Vampire Slayer

Suzy Bishop is only 12, but her withering stare and withdrawn personality are enough to make anyone wilt. See them in Moonrise Kingdom.

Call her. Beep her. If anyone's in trouble, Kim Possible is there. See them in Kim Possible.

Marlin navigates through shark-infested waters, angry anglerfish, a jellyfish bloom and hungry whales to search for his son. See them in Finding Nemo.

Though he may be blind, Chirrut Imwe sees the power of the force more than most. See them in Rogue One.

Alex Danvers is a brilliant engineer tasked with alien threats, and one of those aliens is her adopted sister Supergirl. See them in Supergirl.

Both intelligent and empathetic, Remus Lupin is worn down by the weight of a secret. See them in Harry Potter Series.

Privileged young Bruce's childhood was nearly perfect. Now, his life is anything but. See them in Gotham.

Quinn Fabray can become a monster when there is something she wants. See them in Glee.

A former high school outcast, Rebecca Doppelmeyer is tentatively shaking off her misanthropic personality. See them in Ghost World.

There is never a dull moment with Jim Moriarty: expect booze and sing alongs in between all of the homicide. See them in Sherlock.